Xiaomi Mi TDS Meter water purity tester high quality EC TDS-3 Tester

1,499.00

In stock

  • Original Xiaomi MiJia Mi TDS Meter Tester
  • Portable Detection
  • Water Purity Quality Test
  • EC TDS-3 Tester
  • High Accurate Test
  • Water Quality Meter Tester Pen
  • Water Measurement Tools
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SKU: MI-TDS METER Categories: ,

Features:

Users will read the TDS meter on a LCD display located on the middle upper position of the pen

It comes with a detection sensor, which basically functions when a metal goes into contact with the water being tested

The reading will stabilize in about three seconds of testing the water with this gadget. It measures water quality on parts per million scale

TDS means total dissolved solids, the amount of mineral and water salts in water.

The water quality detection pen is used to detect how bad water is in regard to quality and in relation to expected standards

For instance, typical bottled water should be around 1ppm

The cap can be used to take water

Auto-off function: the meter shuts off automatically after 2 minutes of non-use to conserve batteries

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Total dissolved solids (TDS):

The tds meter is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecularionized, or micro-granular (colloidal sol) suspended form. TDS concentrations are often reported in parts per million (ppm). Water TDS concentrations can be determined using a digital meter.

Generally, the tds mete operational definition is that the solids must be small enough to survive filtration through a filter with 2-micrometer (nominal size, or smaller) pores. Total dissolved solids are normally discussed only for freshwater systems, as salinity includes some of the ions constituting the definition of TDS. The principal application of TDS is in the study of water quality for streamsrivers, and lakes. Although TDS is not generally considered a primary pollutant (e.g. it is not deemed to be associated with health effects), it is used as an indication of aesthetic characteristics of drinking water and as an aggregate indicator of the presence of a broad array of chemical contaminants.

Primary sources for tds mete in receiving waters are agricultural runoff and residential (urban) runoff, clay-rich mountain waters, leaching of soil contamination, and point source water pollution discharge from industrial or sewage treatment plants. The most common chemical constituents are calciumphosphatesnitratessodiumpotassium, and chloride, which are found in nutrient runoff, general stormwater runoff and runoff from snowy climates where road de-icing salts are applied. The chemicals may be cationsanionsmolecules or agglomerations on the order of one thousand or fewer molecules, so long as a soluble micro-granule is formed. More exotic and harmful elements of TDS are pesticides arising from surface runoff. Certain naturally occurring total dissolved solids arise from the weathering and dissolution of rocks and soils. The United States has established a secondary water quality standard of 500 mg/l to provide for palatability of drinking water.

Total dissolved solids are differentiated from total suspended solids (TSS), in that the latter cannot pass through a sieve of 2 micrometers and yet are indefinitely suspended in solution. The term settleable solids refers to material of any size that will not remain suspended or dissolved in a holding tank not subject to motion, and excludes both TDS and TSS. Settleable solids may include larger particulate matter or insoluble molecules.

Total dissolved solids include both volatile and non-volatile solids. Volatile solids are ones that can easily go from a solid to a liquid state. Non-volatile solids must be heated to a high temperature, typically 550 °C, in order to achieve this state change. Examples of non-volatile substances include salts and sugars.

The two principal methods of measuring total dissolved solids are gravimetric analysis and conductivity.  Gravimetric methods are the most accurate and involve evaporating the liquid solvent and measuring the mass of residues left. This method is generally the best, although it is time-consuming. If inorganic salts comprise the great majority of TDS, gravimetric methods are appropriate.Electrical, or specific, conductivity of water is directly related to the concentration of dissolved ionized solids in the water. Ions from the dissolved solids in water create the ability for that water to conduct an electric current, which can be measured using a conventional conductivity meter or TDS meter. When correlated with laboratory TDS measurements, conductivity provides an approximate value for the TDS concentration, usually to within ten-percent accuracy.

Additional information

Weight0.25 kg
Dimensions10 × 8 × 5 cm
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TDS Meter

Xiaomi Mi TDS Meter water purity tester high quality EC TDS-3 Tester

1,499.00

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